WO2007145718A8 - Compliant structure design for varying surface contours - Google Patents

Compliant structure design for varying surface contours

Info

Publication number
WO2007145718A8
WO2007145718A8 PCT/US2007/010438 US2007010438W WO2007145718A8 WO 2007145718 A8 WO2007145718 A8 WO 2007145718A8 US 2007010438 W US2007010438 W US 2007010438W WO 2007145718 A8 WO2007145718 A8 WO 2007145718A8
Authority
WO
WIPO (PCT)
Prior art keywords
rib
structure design
airfoil
surface contours
compliant structure
Prior art date
Application number
PCT/US2007/010438
Other languages
French (fr)
Other versions
WO2007145718A3 (en
WO2007145718A2 (en
WO2007145718A9 (en
Inventor
Joel A Hetrick
Gregory F Ervin
Sridhar Nmn Kota
Original Assignee
Flexsys Inc
Joel A Hetrick
Gregory F Ervin
Sridhar Nmn Kota
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US12/226,790 priority Critical patent/US8418966B2/en
Priority to EP07815105.7A priority patent/EP2021243B1/en
Priority to EP18195462.9A priority patent/EP3470335A1/en
Priority to PL07815105T priority patent/PL2021243T3/en
Priority to ES07815105T priority patent/ES2707549T3/en
Priority to CA002650535A priority patent/CA2650535A1/en
Priority to BRPI0710353-0A priority patent/BRPI0710353B1/en
Application filed by Flexsys Inc, Joel A Hetrick, Gregory F Ervin, Sridhar Nmn Kota filed Critical Flexsys Inc
Publication of WO2007145718A2 publication Critical patent/WO2007145718A2/en
Publication of WO2007145718A8 publication Critical patent/WO2007145718A8/en
Publication of WO2007145718A9 publication Critical patent/WO2007145718A9/en
Publication of WO2007145718A3 publication Critical patent/WO2007145718A3/en
Priority to US13/836,511 priority patent/US8814101B2/en
Priority to US14/469,385 priority patent/US9676471B2/en
Priority to US15/621,117 priority patent/US20170274976A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C3/00—Wings
    • B64C3/38—Adjustment of complete wings or parts thereof
    • B64C3/52—Warping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C3/00—Wings
    • B64C3/38—Adjustment of complete wings or parts thereof
    • B64C3/44—Varying camber
    • B64C3/48—Varying camber by relatively-movable parts of wing structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/54—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
    • B64C27/58—Transmitting means, e.g. interrelated with initiating means or means acting on blades
    • B64C27/59—Transmitting means, e.g. interrelated with initiating means or means acting on blades mechanical
    • B64C27/615—Transmitting means, e.g. interrelated with initiating means or means acting on blades mechanical including flaps mounted on blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/54—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
    • B64C27/72—Means acting on blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C3/00—Wings
    • B64C3/38—Adjustment of complete wings or parts thereof
    • B64C3/44—Varying camber
    • B64C3/50—Varying camber by leading or trailing edge flaps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C3/00—Wings
    • B64C3/38—Adjustment of complete wings or parts thereof
    • B64C3/44—Varying camber
    • B64C2003/445—Varying camber by changing shape according to the speed, e.g. by morphing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/54—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
    • B64C27/72—Means acting on blades
    • B64C2027/7205—Means acting on blades on each blade individually, e.g. individual blade control [IBC]
    • B64C2027/7211—Means acting on blades on each blade individually, e.g. individual blade control [IBC] without flaps
    • B64C2027/7222—Means acting on blades on each blade individually, e.g. individual blade control [IBC] without flaps using airfoil deformation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/54—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
    • B64C27/72—Means acting on blades
    • B64C2027/7205—Means acting on blades on each blade individually, e.g. individual blade control [IBC]
    • B64C2027/7261—Means acting on blades on each blade individually, e.g. individual blade control [IBC] with flaps
    • B64C2027/7266—Means acting on blades on each blade individually, e.g. individual blade control [IBC] with flaps actuated by actuators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/54—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
    • B64C27/72—Means acting on blades
    • B64C2027/7205—Means acting on blades on each blade individually, e.g. individual blade control [IBC]
    • B64C2027/7261—Means acting on blades on each blade individually, e.g. individual blade control [IBC] with flaps
    • B64C2027/7294—Means acting on blades on each blade individually, e.g. individual blade control [IBC] with flaps actuated mechanically, e.g. by means of linkages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/46—Blades
    • B64C27/473—Constructional features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C9/00—Adjustable control surfaces or members, e.g. rudders
    • B64C9/14—Adjustable control surfaces or members, e.g. rudders forming slots
    • B64C9/16—Adjustable control surfaces or members, e.g. rudders forming slots at the rear of the wing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C9/00—Adjustable control surfaces or members, e.g. rudders
    • B64C9/14—Adjustable control surfaces or members, e.g. rudders forming slots
    • B64C9/22—Adjustable control surfaces or members, e.g. rudders forming slots at the front of the wing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/30—Wing lift efficiency
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18288—Cam and lever

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Transmission Devices (AREA)

Abstract

An edge moφhing arrangement for an airfoil having upper and lower control surfaces is provided with a rib element arranged to overlie the edge of the airfoil. The rib element has first and second rib portions arranged to communicate with respectively associated ones of the upper and lower control surfaces of the airfoil. A first compliant linkage element has first and second ends and is disposed between the first and second rib portions of the rib element, the first and second ends are each coupled to the interior of a respectively associated one of the first and second rib portions. There is additionally provided a driving link having first and second driving link ends, the first driving link end being coupled to the interior of a selectable one of the first and second rib portions.
PCT/US2007/010438 2006-04-27 2007-04-27 Compliant structure design for varying surface contours WO2007145718A2 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
CA002650535A CA2650535A1 (en) 2006-04-27 2007-04-27 Compliant structure design for varying surface contours
EP07815105.7A EP2021243B1 (en) 2006-04-27 2007-04-27 Compliant structure design for varying surface contours
EP18195462.9A EP3470335A1 (en) 2006-04-27 2007-04-27 Compliant structure design for varying surface contours
PL07815105T PL2021243T3 (en) 2006-04-27 2007-04-27 Compliant structure design for varying surface contours
ES07815105T ES2707549T3 (en) 2006-04-27 2007-04-27 Elastic structure design for different surface contours
US12/226,790 US8418966B2 (en) 2006-04-27 2007-04-27 Compliant structure design of varying surface contours
BRPI0710353-0A BRPI0710353B1 (en) 2006-04-27 2007-04-27 EDGE MORPHOLOGICAL CHANGE ARRANGEMENT FOR AN AIRPORT THAT HAS UPPER AND LOWER CONTROL SURFACES
US13/836,511 US8814101B2 (en) 2006-04-27 2013-03-15 Compliant structure design for varying surface contours
US14/469,385 US9676471B2 (en) 2006-04-27 2014-08-26 Compliant structure design for varying surface contours
US15/621,117 US20170274976A1 (en) 2006-04-27 2017-06-13 Compliant structure design for varying surface contours

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US79595606P 2006-04-27 2006-04-27
US60/795,956 2006-04-27

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US12/226,790 A-371-Of-International US8418966B2 (en) 2006-04-27 2007-04-27 Compliant structure design of varying surface contours
US13/836,511 Continuation US8814101B2 (en) 2006-04-27 2013-03-15 Compliant structure design for varying surface contours

Publications (4)

Publication Number Publication Date
WO2007145718A2 WO2007145718A2 (en) 2007-12-21
WO2007145718A8 true WO2007145718A8 (en) 2008-03-20
WO2007145718A9 WO2007145718A9 (en) 2008-05-02
WO2007145718A3 WO2007145718A3 (en) 2008-07-10

Family

ID=38832256

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/010438 WO2007145718A2 (en) 2006-04-27 2007-04-27 Compliant structure design for varying surface contours

Country Status (8)

Country Link
US (4) US8418966B2 (en)
EP (2) EP2021243B1 (en)
BR (1) BRPI0710353B1 (en)
CA (1) CA2650535A1 (en)
ES (1) ES2707549T3 (en)
PL (1) PL2021243T3 (en)
TR (1) TR201900555T4 (en)
WO (1) WO2007145718A2 (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005027749B4 (en) * 2005-06-16 2011-07-28 Airbus Operations GmbH, 21129 Buoyancy-enhancing flap, in particular nose flap, for an aerodynamically effective wing
EP2134597B1 (en) * 2007-03-09 2011-06-22 Asco Industries Wing
DE102007013289B4 (en) * 2007-03-16 2010-02-04 Eurocopter Deutschland Gmbh Profile deformation using the example of a rotor blade
WO2009061478A1 (en) * 2007-11-06 2009-05-14 Flexsys, Inc. Active control surfaces for wind turbine blades
FR2956856A1 (en) 2010-02-26 2011-09-02 Eurocopter France ADAPTIVE WHEEL BLADE AND ROTOR WITH SUCH BLADE
GB2479411A (en) * 2010-04-09 2011-10-12 Microtecnica Actuation Technologies Ltd Rotor blade
GB201008773D0 (en) * 2010-05-26 2010-07-14 Airbus Uk Ltd Aircraft slat assembly
US9856012B2 (en) 2012-06-21 2018-01-02 Bombardier Inc. Morphing wing for an aircraft
FR2993858B1 (en) * 2012-07-27 2014-08-22 Thales Sa METHOD FOR TORQUE CONTROL OF AN ANGULAR POSITION CONTROLLED ACTUATOR OF A MECHANICAL FLIGHT CONTROL AIRCRAFT
DE102012110805B3 (en) * 2012-11-12 2014-02-13 Deutsches Zentrum für Luft- und Raumfahrt e.V. Morphing structure for a wing leading edge
US9896188B1 (en) 2013-12-04 2018-02-20 The United States Of America As Represented By The Secretary Of The Air Force Variable camber adaptive compliant wing system
US9233749B1 (en) 2013-12-04 2016-01-12 The United States Of America As Represented By The Secretary Of The Air Force Variable camber adaptive compliant wing system
US9598167B2 (en) * 2014-03-04 2017-03-21 The Boeing Company Morphing airfoil leading edge
WO2016046787A1 (en) 2014-09-25 2016-03-31 Bombardier Inc. Morphing skin for an aircraft
US9126677B1 (en) 2014-10-16 2015-09-08 Sydney Robert Curtis Universal multi-role aircraft protocol
TWI519987B (en) * 2014-11-14 2016-02-01 財團法人工業技術研究院 Structural topology optimization design method
GB2533311A (en) * 2014-12-15 2016-06-22 Airbus Operations Ltd A track container
CN105366026B (en) * 2015-11-24 2018-07-13 中国航空工业集团公司沈阳飞机设计研究所 A kind of axis pressure Material Stiffened Panel post-buckling carrying design method
AU2017225894A1 (en) * 2016-02-29 2018-09-06 Flexsys, Inc. Edge morphing arrangement for an airfoil
US10442525B2 (en) * 2016-05-07 2019-10-15 Optivector Ltd Rotor or propeller blade with dynamically variable geometry and other properties
BE1024400B1 (en) * 2016-07-15 2018-02-13 Michel Van De Wiele Nv Device for cutting pile threads on a weaving machine
US11060527B2 (en) * 2016-10-28 2021-07-13 Rolls-Royce Corporation Thrust ring and rotor fan system with passive leading edge slats
US10137999B2 (en) * 2017-03-30 2018-11-27 The Boeing Company Methods and apparatus for detecting airflow control surface skew conditions
US11325700B2 (en) * 2017-07-21 2022-05-10 The Government Of The United States Of America, As Represented By The Secretary Of The Navy Hypersonic waverider stream surface actuation for variable design point operation
US11097829B2 (en) * 2018-04-13 2021-08-24 The Boeing Company Methods and apparatus to control camber
US10800511B2 (en) 2018-05-31 2020-10-13 The Boeing Company End seal device for a high-lift device of an aircraft
US11254414B2 (en) * 2020-04-15 2022-02-22 The Boeing Company Aircraft wing droop leading edge apparatus and methods
TR202011718A1 (en) * 2020-07-23 2022-02-21 Tusaş Türk Havacilik Ve Uzay Sanayi̇i̇ Anoni̇m Şi̇rketi̇ A control surface system.
CN112765731B (en) * 2021-01-19 2022-09-09 北京航空航天大学 Method for optimizing aeroelasticity of curved fiber composite structure by considering local buckling
CN113602489B (en) * 2021-10-11 2021-12-07 中国空气动力研究与发展中心低速空气动力研究所 Active control trailing edge winglet device for backflow stall of rotor blade with large advancing ratio
US11597490B1 (en) 2021-12-22 2023-03-07 Rapidflight Holdings, Llc Additive manufactured airframe structure having a plurality of reinforcement elements
CN114396425B (en) * 2022-02-18 2023-02-03 中国商用飞机有限责任公司 Roller device with adjustable supporting rigidity

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR574500A (en) * 1923-12-15 1924-07-11 Airplane wing with variable airfoil
US1766107A (en) * 1924-09-05 1930-06-24 Jr John F Cook Aerofoil
US2010549A (en) * 1933-10-18 1935-08-06 Joseph Mandelbaum J Aeroplane wing
US2716460A (en) * 1952-02-28 1955-08-30 Raymond A Young Blade and control mechanism for helicopters
US2749060A (en) * 1952-07-01 1956-06-05 Boeing Co Airplane wing
US2776577A (en) * 1953-08-10 1957-01-08 Foote Bros Gear And Machine Co Screw actuating device
US3179357A (en) * 1962-02-27 1965-04-20 Donald G Lyon Variable shaped airfoil
US3215370A (en) * 1963-02-26 1965-11-02 Rotorcraft S A Proprietary Ltd Rotating wing aircraft
US3215580A (en) 1964-06-25 1965-11-02 Grace W R & Co Coating and laminating process
US3994452A (en) * 1974-03-28 1976-11-30 The Boeing Company Variable camber airfoil
GB1536331A (en) * 1976-04-01 1978-12-20 Secr Defence Aerofoils
DE2907912C2 (en) * 1979-03-01 1985-06-05 Dornier Gmbh, 7990 Friedrichshafen Transverse drive body with variable profiling, in particular nose parts of aircraft wings
US4706913A (en) * 1982-12-28 1987-11-17 The Boeing Company Variable camber leading edge assembly for an airfoil
JP2617281B2 (en) * 1995-03-27 1997-06-04 株式会社コミュータヘリコプタ先進技術研究所 Helicopter rotor with flap
DE19808196C2 (en) * 1998-02-27 2003-06-05 Eurocopter Deutschland Rotor blade for a helicopter
DE69916360T3 (en) * 1998-05-21 2008-06-05 Mcdonnell Douglas Corp. airfoil
US6045096A (en) 1998-06-30 2000-04-04 Rinn; Aaron Variable camber airfoil
DE19852944C1 (en) 1998-11-17 2000-02-10 Daimler Chrysler Ag Variable geometry wing profile has flexible construction for the leading and trailing edges operated by integral actuators
GB9826681D0 (en) * 1998-12-04 1999-01-27 British Aerospace Composite laminates
US6491262B1 (en) * 1999-01-15 2002-12-10 Sridhar Kota System for varying a surface contour
JP3004644B1 (en) * 1999-03-03 2000-01-31 株式会社コミュータヘリコプタ先進技術研究所 Rotary blade flap drive
DE20004499U1 (en) * 2000-03-14 2000-12-07 Daimler Chrysler Ag Aerodynamic flow profile with leading edge flap
AU2002211255A1 (en) * 2000-09-22 2002-04-02 Diversified Technologies, Inc. Variable edge rotor blade
US6575407B2 (en) * 2000-10-18 2003-06-10 Lockheed Martin Corporation Subdermally-reinforced elastomeric transitions
US6932569B2 (en) * 2002-05-17 2005-08-23 Sikorsky Aircraft Corporation Active control of multi-element rotor blade airfoils
US7384016B2 (en) * 2003-03-03 2008-06-10 Flexsys, Inc. Adaptive compliant wing and rotor system
WO2004088130A1 (en) 2003-03-31 2004-10-14 Forskningscenter Risø Control of power, loads and/or stability of a horizontal axis wind turbine by use of variable blade geometry control
DE102004045651B4 (en) * 2004-09-21 2010-09-16 Airbus Deutschland Gmbh Wing, in particular wing of an aircraft, with variable profile

Also Published As

Publication number Publication date
US20130264427A1 (en) 2013-10-10
CA2650535A1 (en) 2007-12-21
ES2707549T3 (en) 2019-04-04
EP2021243B1 (en) 2018-10-24
WO2007145718A3 (en) 2008-07-10
BRPI0710353A2 (en) 2011-08-09
TR201900555T4 (en) 2019-02-21
US20170274976A1 (en) 2017-09-28
WO2007145718A2 (en) 2007-12-21
EP3470335A1 (en) 2019-04-17
US9676471B2 (en) 2017-06-13
US20150210376A1 (en) 2015-07-30
US8418966B2 (en) 2013-04-16
US20090302168A1 (en) 2009-12-10
EP2021243A4 (en) 2013-04-17
US8814101B2 (en) 2014-08-26
PL2021243T3 (en) 2019-04-30
BRPI0710353B1 (en) 2020-03-17
WO2007145718A9 (en) 2008-05-02
EP2021243A2 (en) 2009-02-11

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